Tumblr is out today with a brand new version of its blogging and community app for iPhone and iPad. Version 4 adds several new features like the ability to create new blogs from your iPhone or iPad and create video posts quickly by pasting YouTube or Vimeo URLs into a new post. The update adds a new widget for the Today section of Notification Center on iOS 8 for quickly seeing which tags are trending on Tumblr when you’re not using the app and much more. expand full story